Facing constant noises on your car tends to be upsetting, a car is so elaborate that it is most of the time hard to discover its origin and even more complicated to find the component that triggers it. In case you too have already faced a cold engine noise on your hyundai i40, we can surely support you. Indeed, our team decided to compose this content page to be able to inspect the main triggers of an engine that rattles when cold on your hyundai i40. First we will look at engines that is rattling only at start up, then because of unsuitable oil and finally because of glow plugs.


The engine of my hyundai i40 is rattling only when starting

If the engine of your hyundai i40 makes a cold rattles, especially when starting and which ends fairly quickly afterwards, it is possible that your engine lubrication is at fault. Indeed, the oil strainer (the component that sucks up the oil and makes it rise to the top of the engine) can be broken and therefore take some time to make the oil rise when it is still very viscous. If this is your situation, after a few tens of seconds the engine that slams your hyundai i40 should return to normal performance because the lubrication of the engine will be done naturally, make sure examine the condition of the engine.

Engine of my hyundai i40 that rattles when cold because of too fluid oil

Another possibility which can justify an engine which cold rattling on your hyundai i40 is that during an oil change the selection of oil was not best, in fact, engine oils differ on their viscosity, which we will compare with the “W” value, the higher this value is the thicker the oil will be and vice versa. If a too fluid oil has been chosen, it is possible that when cold, the lubrication it allows is not sufficient to limit engine slamming, compare the oil used and the oil recommended by the manufacturer, if your engine clicking is strong or if it persists on your hyundai i40, do not think twice to change it with the right oil.

Engine that rattles when cold on my hyundai i40 cause of the glow plugs

If you have a diesel engine, your engine is rattling when cold, and it has complication starting when it is cold, it may be your hyundai i40 glow plugs that are nearly good to be changed. Indeed, a dead spark plug will cause the connected cylinder not to heat up and will cause a stronger rattles on an engine hyundai i40, so take into account trying out the state of your spark plugs independently using a multimeter, it may be that only one is concerned like all of them. Here, we have listed to you, the main factors of an engine that cold slam on a car, do not think twice to consult our page specialized to your car to find extra info on all the breakdowns linked to your car.

If perhaps you have any further questions about the hyundai i40, do not hesitate to consult our hyundai i40 category.